Abstract: A power inverter for a hybrid automotive vehicle having a case with an interior and at least one electrical port mounted on the case to electrically connect electrical signals from the interior of the case to an exterior device. A cable connector is associated with each electrical port while a non-electrical sensing conductor extends serially through each electrical port and its associated cable connector. A circuit is provided which detects a break in the continuity of the sensing conductor and generates a signal representative of that break in continuity. The non-electrical sensing conductor thus minimizes the emission of EMI from the inverter. Additionally, a circuit board is mounted within the interior of the case by fasteners which minimize the spacing between the circuit board and the case to further reduce EMI emissions.

Abstract: A power inverter of the type used with hybrid electric vehicles having a circuit board with a power layer having a first and second section which are electrically separated using slits from each other on the power layer. A control circuit is connected to and powered by the first section of the power layer while a switching power supply is connected to and powered by the second section of the power layer. An electromagnetic filter is electrically connected between the sections of the power layer. This electromagnetic filter blocks high frequency noises of the type generated by the switching power supply while enabling the sections to be maintained at the same DC voltage level. Optionally, a ferrite covering is provided around a current bus bar of the power inverter to contain magnetic fields generated by current flow through the bus bar.

Abstract: A power inverter for a hybrid automotive vehicle having a case with an interior and at least one electrical port mounted on the case to electrically connect electrical signals from the interior of the case to an exterior device. A cable connector is associated with each electrical port while a non-electrical sensing conductor extends serially through each electrical port and its associated cable connector. A circuit is provided which detects a break in the continuity of the sensing conductor and generates a signal representative of that break in continuity. The non-electrical sensing conductor thus minimizes the emission of EMI from the inverter. Additionally, a circuit board is mounted within the interior of the case by fasteners which minimize the spacing between the circuit board and the case to further reduce EMI emissions.

Abstract: An electric motor particularly suited for a hybrid electric automotive vehicle. The motor includes a stator housing and a rotor having a core and rotatably mounted to the housing by a bearing assembly. An electrical conductor separate from the bearing assembly provides a low impedance electrical conductive path for high frequency radio emissions from the rotor core and to the stator housing thus reducing the transmission of electrical magnetic interference from an output shaft of the rotor.

Abstract: A power inverter of the type used with hybrid electric vehicles having a circuit board with a power layer having a first and second section which are electrically separated using slits from each other on the power layer. A control circuit is connected to and powered by the first section of the power layer while a switching power supply is connected to and powered by the second section of the power layer. An electromagnetic filter is electrically connected between the sections of the power layer. This electromagnetic filter blocks high frequency noises of the type generated by the switching power supply while enabling the sections to be maintained at the same DC voltage level. Optionally, a ferrite covering is provided around a current bus bar of the power inverter to contain magnetic fields generated by current flow through the bus bar.